@inproceedings{ralph1952inclusion,
title={Inclusion relations among methods of summability compounded from given matrix methods},
author={Ralph Palmer Agnew},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203416313692887},
booktitle={Arkiv for Matematik},
volume={2},
number={4},
pages={361-374},
year={1952},
}
Ralph Palmer Agnew. Inclusion relations among methods of summability compounded from given matrix methods. 1952. Vol. 2. In Arkiv for Matematik. pp.361-374. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203416313692887.